Multi-conductor unshieded cable. Solid bare copper conductor material. PVC insulation. 30 V operating voltage. Used in home, office, automobile and all other buildings. Found in computer systems, control systems, electronics, business machines, cash registers, alarm systems, audio speakers, POTS telephone systems, thermostats, doorbells and other low voltage remote systems. Thermostat controls, door bells, security systems and other low voltage remote control systems where voltage does not exceed 30 volts.